What is a sample in the context of research?

Which data collection method would best suit observing traffic patterns at an intersection?

How can stratified sampling improve the accuracy of a study’s results?

A researcher claims their sampling method is random but only selects participants from one school. What is wrong with this claim?

What is a frequency distribution table?

Why is organizing data into a frequency distribution table useful?

Given the dataset [10, 20, 20, 30, 30, 30, 40, 40], how many times does the value 30 appear in a frequency table?

A relative frequency table shows one class has 50% of the total data. What can you infer from this?

In which situation is a line graph most appropriate?

A survey shows the monthly expenses of a family in percentages: food (40%), rent (30%), utilities (20%), and others (10%). Which graph would best represent this data?

A bar graph shows the number of participants in three events: Event A (50), Event B (75), and Event C (25). What does the graph suggest about Event B?

What does the height of a bar in a bar graph typically represent?

Which statement best describes the integers?

A player is playing a game where he earns and loses points based on his performance. He starts with 20 points. After his first round, he gains 15 points. In the second round, he loses 8 points. In the third round, he gains 12 points. What is the player’s total score after these three rounds?

Consider the set { -8, -7.5, -6, -2, 0, 1.34, 3, 5}. How many integers in the set are greater than or equal to 0?

What does a positive number typically represent in a real-life situation involving directions?

A balloon is 120 meters above the ground and descends 100 meters. What is its new position relative to the ground?

A hiker starts 5 meters below a valley's base. They climb up 8 meters to reach a trail and then descend 4 meters to a stream. What is the hiker's final position relative to the valley's base?

Which integer is 4 units to the right of -2 on a number line?

Which of the following integers is farthest to the left on a number line?

A student is standing at point –3 on a number line. She moves 5 steps to the right and then 2 steps to the left. In what particular location on the number line is this student now?

What is the correct comparison of -3 and 2?

A student scored -3, 5, -1, and 2 on different tests. Arrange the scores in descending order.

A runner is at position -4 on a track and moves to position 6. Another runner starts at 3 and moves to -7. Who covered more distance?

Which of the following correctly shows (–1) – 4 on a number line?

Is (−3) – 4 = 7 true?

Which word problem best translates (−5 ) + 7?

Which of the following statements is true?

A submarine starts 150 meters below sea level. It ascends 25 meters every 3 minutes. How far will the submarine be from sea level after 15 minutes?

Which of the following pairs results in a negative product?

Which operation is performed first in 6 + 3 (2 − 1) according to GEMDAS?

Simplify: 12 ÷ 3 + 2(−4)

Which step is incorrect when simplifying 2[5 − (−3)] + 4 ÷ 2?

The absolute value of a number represents its:

A football team lost 8 yards on one play and gained 6 yards on another. What is the absolute value of their net yardage?

Why is the absolute value of −10 the same as the absolute value of 10?